Union in Design — Uniting Data with Design

Core Competencies

Full Stack Engineering for Aerospace, Defense & Beyond

React & Frontend Engineering

Building complex web applications with React, TypeScript, Redux and Next.js. 10+ years of frontend experience delivering production-grade UIs for government and commercial clients.

Geospatial & 3D Mapping

Expert in CesiumJS, Mapbox GL, and DeckGL for 3D satellite visualization, orbital tracking, search and rescue, and real-time geospatial data rendering at scale.

Data Visualization & Analytics

Interactive dashboards with D3.js, Plotly, Victory, and Tableau. Python data pipelines, ETL workflows, and machine learning integration using Jupyter Notebooks.

Full Stack & DevOps

FastAPI and Node.js backends, PostgreSQL and MongoDB databases, AWS infrastructure (ECS, Lambda, CDK), Docker, Kubernetes, and CI/CD with Gitlab and Github Actions.

Full Stack Engineer

React · TypeScript · CesiumJS · Mapbox · Python

Born in France, raised in Washington DC, and based in Littleton, CO. I've been building web experiences since 2011 — starting with Bootstrap sites for local businesses and nonprofits, and evolving into a Senior Software Engineer for Aerospace, Defense, and Intelligence applications. I have deep expertise across 3D geospatial mapping, remote sensing, modeling and simulation, and command & control. I'm passionate about creating the best possible workflow for data interactions.

React / TypeScript / Next.js

CesiumJS / Mapbox GL / DeckGL

Data Visualization (D3, Plotly, Tableau)

Python / FastAPI / Node.js

AWS / Docker / Kubernetes / CI/CD

Portfolio

Production Apps &
Open Source Projects

AllReactData VizFull StackProduction

3D Satellite Mapping — CesiumJS

Orbital tracking and spacecraft telemetry visualization for aerospace mission command & control

DetailsInteractive Map

3D Covid-19 Demographic Map

deck.gl + MapLibre 3D choropleth visualization of pandemic demographic data

DetailsInteractive Map

Graph Visualization — CytoscapeJS

Directed graph network visualization and layout engine using CytoscapeJS

PreviewGitHub

2015 Portfolio Site

My first Union in Design portfolio — built by hand before bootcamp, before "developer" was the job title

Details

Experience

Work History

Code Metal AI

Senior Software Engineer

Jul 2025 – Apr 2026 · Littleton, CO (Remote)

React/TypeScript/Zustand frontend for Modeling & Simulation of armed conflict scenarios
CesiumJS 3D visualization of aircraft, maritime, and ground assets
Figma to code translation; Python backend endpoint support

Sphinx Defense

Senior Frontend Engineer

Jan 2025 – Jun 2025 · Littleton, CO (Remote)

Space mission command & control with Next.js, TailwindCSS, AstroUX, CesiumJS
3D satellite contact scheduling, telemetry transmission at high data rates
Python backend endpoint additions and PostgreSQL database updates

Descartes Labs Government (Earth Daily Analytics)

Senior Frontend Engineer

Jan 2022 – Dec 2024 · Littleton, CO (Remote)

Technical Lead for US Army near real-time cyber OSINT monitoring app
Lead engineer for Air Force Rescue Coordination Center (AFRCC) search & rescue app
React/Redux/Mapbox; AWS CDK infrastructure as code; CI/CD with Docker & ECS; Python FastAPI

Redwire Space (Oakman Aerospace)

Frontend Developer

Jul 2020 – Jan 2022 · Littleton, CO

Satellite simulation web apps with CesiumJS 3D orbit playback and Plotly dashboards
Full stack: Symfony PHP, PostgreSQL, jQuery, React, TypeScript
LEO constellation monitoring with ReactJS and MQTT over WebSocket; D3.js flight software diagramming

FareHarbor (Booking.com)

Data Visualization Analyst

Dec 2018 – Jul 2020 · Denver, CO

Global real-time revenue map with React/Mapbox displaying 30,000+ bookings per day
Custom dashboards with D3, Python, PostgreSQL, and Tableau for business intelligence reporting
AWS Serverless backend (S3, Lambda) and Python web scrapers with Selenium

University of Denver (Trilogy Education)

Teaching Assistant

Dec 2018 – Aug 2021 · Denver, CO

Supported in-person and online coding bootcamps for Full Stack Developer and Data Analytics programs
Guided students through JavaScript, React, Node.js, Python, SQL, and data visualization projects

Education

Degrees & Certifications

Combining formal academic education with intensive bootcamp training, plus continuous self-study in geospatial technologies, cloud infrastructure, and AI/ML tooling.

Languages: English (fluent) · French (fluent) · Spanish (highly proficient)
Dual Citizenship: USA / France

Mar 2020 – Aug 2020

Data Analytics & Visualization Certificate

University of Denver

Python, Jupyter Notebooks, ETL pipelines, data wrangling, web scraping, and data visualization with Matplotlib and Plotly.

Nov 2017 – Apr 2018

Full Stack Web Developer Certificate

University of Denver

Full Stack JavaScript development: React, Node.js, Express, MongoDB (MERN stack), RESTful APIs, and deployment.

2002 – 2004

BA in History — Latin America Focus, Spanish Minor

University of Maryland

College Park, MD. Minor in Spanish; high proficiency in French.

2000 – 2002

Undergraduate Studies — Human Rights & Spanish

Trinity College

Hartford, CT. Studied Human Rights and Spanish, and played in the campus Salsa band, before transferring to the University of Maryland to continue a degree in History.

1998 – 2000

High School Diploma

Gonzaga College High School

Washington, DC.

stevemarshall89@yahoo.com